/*
 * Copyright 2008 Nordic Consulting & Development Company
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package pl.ncdc.web.login.client.service;

import com.google.gwt.user.client.rpc.AsyncCallback;

/**
 * User authentication service, asynchronous version.
 * <p>
 * Created on Apr 17, 2008
 *
 * @author hshsce
 * @version $Id: AuthenticationServiceAsync.java 103 2008-06-02 14:44:57Z hshsce $
 *
 * @see AuthenticationService
 */
public interface AuthenticationServiceAsync {

	/**
	 * Authenticates user identified by the <code>uid</code> and <code>password</code>.
	 *
	 * @param uid the user id.
	 * @param password the password.
	 * @param rememberMe flag indicating if user credentials should be stored in cookie.
	 * @param callback the async callback.
	 *
	 * @see AuthenticationService#login(String, String, boolean)
	 */
	void login(String uid, String password, boolean rememberMe, AsyncCallback<AuthenticationResult> callback);

	/**
	 * Deauthenticates the HTTP session.
	 *
	 * @param callback the async callback.
	 *
	 * @see AuthenticationService#logout()
	 */
	void logout(AsyncCallback<?> callback);

}
